law enforcement sources tell nbc news the investigation involves an alleged misuse of funds monitored by congress. but there are no specifics tonight. attorneys met with prosecutors this week in an effort to persuade them not to indict the illinois congressman. jackson has been on medical leave from congress since june. >>> now, a disturbing attack today. someone fired shots into the campaign headquarters for president obama in denver. the bullet shattered a large front window, but no one was hurt. police believe the shot was fired from a vehicle. tontd, both sides are claiming victory in the viesz presidential debate. president obama watched from air force 1. mitt romney was in richmond today. but did the debate swing undecide ds voters? nbc news talked about who they saw as the winner. >> the vice president did? >> why? >> i think he came off as being very strong, emotional. >> vice president biden was being kind of immature with a lot of the skiend of snide sniers and everything. >> the next presidential debate, by the way, set for tuesday in hemstead, new york. right now, plans in